@media only screen and (min-device-width: 800px) {
    html {
        overflow: hidden;
    }
}
html {
    height: 100%;
}
body {
    height: 100%;
    overflow: hidden;
    margin: 0;
    padding: 0;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
    color: #FFFFFF;
    background-color: #000000;
}